I received my LampizatOr L4/G4 on Friday and its a special DAC right off the bat! My unit is pretty custom incorporating a solid state rectified PSU (to mprove linearity and bass slam) and incorporating Fikusz' favorite Jensen caps and I've gotta say this thing is terrific.
I didn't much care for the Level 3/Gen 3 I owned previously, but this is a whole other beast. Low noise floor, great tonality, awesome staging and depth, really good at resolving complex passages and just an excellent, engaging listen.
My daughter was born on 3/28/13 and, as you could imagine I'm pretty darn sleep deprived, but that didn't keep me from staying up listening last night till about 2:30AM before forcing myself to call it quits.
Enthusiastic thumbs up!